#include <Eigen/Dense>
#include <iostream>

using namespace std;
using namespace Eigen;

int
main()
{
	Eigen::MatrixXf m(2, 2);

	m << 1, 2, 3, 4;

	// get location of maximum
	MatrixXf::Index maxRow, maxCol;
	float max = m.maxCoeff(&maxRow, &maxCol);

	// get location of minimum
	MatrixXf::Index minRow, minCol;
	float min = m.minCoeff(&minRow, &minCol);

	cout << "Max: " << max << ", at: " << maxRow << "," << maxCol << endl;
	cout << "Min: " << min << ", at: " << minRow << "," << minCol << endl;
}
